def login_front():
    username= '1234567890'
    password='abcdefg'
    print(f'账号是{username},密码是{password}')

def login_back():
    username= 'admin'
    password='lelexiaoshagua'
    print(f'账号是{username},密码是{password}')

if __name__ == '__main__':
    login_front()
    login_back()